'Abdullaah Ibn 'Umar said:
[See Fath al-Bari, Vol. 1, p. 54]
quote:
"A person cannot attain a true sense of taqwa unless and until he removes all suspicions from his heart." (i.e. gives up shirk, evil deeds, doubtful things, and starts doing righteous deeds regularly.)
Subhanak Allaahuma wa bihamdika ash-hadu anlaa illaaha illa anta astaghfiruka wa atubu ilayk
If I said anything correct, then it is from Allaah (subhanahu wa taa'ala), and if I erred, then that is from me and shaytan.